Shimano's entry-level road and mountain bike groupsets have been given a significant facelift as improvements to their higher-end offerings trickle down to the Tiagra and Acera groups for 2011/2012.

I tastelessly celebrated the demise of Shimano’s hideous 105-level RS505 hydraulic levers when they left the building for good about a year ago. Now, alongside the launch of its GRX gravel components, ...

The choice of road bike groupsets is huge, from the latest 12- and 13-speed wireless electronic tech through to basic 8 or 9-speed cable-actuated set-ups. There's an increasing number of electronic ...